JSFiddle - React, Tailwind, and code Playground

HTML

<select class="my_class" id="class-a">
<option>a</option>
<option>b</option>
<option>c</option>
</select>


<select id="class-b">
<option>1</option>
<option>2</option>
<option>3</option>
</select>

<but>

JavaScript

//$('select option').remove()

$(".my_class").change(function(){
        var id = $(this).attr('id');
        var id_short = id.slice(0,id.length-1);
        var id_b = id_short.concat("b");
        alert(id_b);
        $('id_b option').remove();})